22 Lacuna parva COMPARE Littorina obtusata/fabalis

22 Lacuna parva COMPARE Littorina obtusata/fabalis

Littorina obtusata/fabalis:
Aperture occupies about 50% of area.
Various colours and patterns including brown, white and yellow; some with brown bands like those on Lacuna parva.
Height 3.8 mm. North-east Scotland, January 1971.

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